Shrub rose plant named ‘AUStango’

ABSTRACT

Shrub rose plant substantially as herein shown and described, characterized particularly by its repeat flowering in large, full cupped blooms of an unusual burnt orange color; having a strong mixed fruity fragrance with banana and tea on a tall, bushy and upright shrub and its disease resistance.

Genus and species: Rosa hybrida.

Variety denomination: ‘AUStango’.

ORIGIN OF THE INVENTION

The present invention relates to a new and distinct variety of a shrubrose plant named ‘AUStango’ which was originated by me by crossing anunnamed, unpatented seedling with an unnamed, unpatented seedling.

BACKGROUND OF THE INVENTION

The primary objective of this breeding was to produce a bushy, uprightshrub which repeat flowers well and bears large, full cupped blooms thatare burnt orange in color.

BRIEF SUMMARY OF THE INVENTION

The objective was substantially achieved, along with other desirableimprovements, as evidenced by the following unique combination ofcharacteristics that are outstanding in the new variety and thatdistinguish it from its parents, as well as from all other varieties ofwhich I am aware:

-   -   1. Flowers in large, full cups of an unusual burnt orange color.    -   2. Tall, bushy and upright shrub.    -   3. Strong mixed fruity fragrance with banana and tea.

Asexual reproduction of this new variety by budding, as performed atAlbrighton, England, shows that the foregoing and all othercharacteristics and distinctions come true to form and are establishedand transmitted through succeeding propagations.

Comparison with Parents

The seed parent has pink blooms in rosettes compared with the burntorange, cupped blooms of ‘AUStango’ and has stronger growth. The pollenparent is a taller shrub than ‘AUStango’ and its blooms are pale pinkrosettes.

Comparison with Similar Variety

‘AUSmum’ (U.S. Plant Pat. No. 9,527) has blooms that are brighter orangethan those of ‘AUStango’ and mixed with yellow, and it makes a broader,more arching shrub. ‘AUStango’ has smaller leaves and fuller blooms than‘AUSmum’.

BRIEF DESCRIPTION OF THE ILLUSTRATION

The accompanying illustration shows typical specimens of the vegetativegrowth and flowers of this new variety in different stages ofdevelopment, depicted in color as nearly true as it is reasonablypossible to make the same in a color illustration of this character. Thereference B/6B/01 appearing beneath the varietal name on theillustration is the applicant's breeding code for the cultivar.

DETAILED BOTANICAL DESCRIPTION

The following is a detailed description of my new rose cultivar withcolor descriptions using terminology in accordance with The RoyalHorticultural Society (London) Colour Chart (2001), except whereordinary dictionary significance of color is indicated.

-   Parentage:    -   -   Seed parent.—Unnamed Seedling (Unpatented).        -   Pollen parent.—Unnamed Seedling. (Unpatented).

FLOWER

Observations made from plants commencing at one year of age grown in agarden environment at Albrighton, England.

-   Blooming habit: Recurrent. The number of blooms per plant during the    growing season is profuse, but there are too many to count.-   Bud:    -   -   Size.—About 3.8 cm long and 2.1 cm in diameter when the            petals start to unfurl.        -   Form.—The bud form is urceolate.        -   Color.—When sepals first divide, bud color is Red Group 42A.            When half blown, the upper sides of the petals are            Orange-Red Group 33B; and the lower sides of the petals are            Orange-Red Group 34C with Red Group 45A at base.        -   Sepals.—Color: Lower surface: Some Red Group 53A, some            Yellow-Green Group 144A with 144B at base. Upper surface:            Yellow-Green Group 148C. Length: 2.8 cm. Width: 1.2 cm.            Shape: Subulate. Surface texture: Lower surface: Smooth with            strong raised central ridge running to apex. Upper surface:            Pubescent. There are three normally appendaged sepals. There            are two unappendaged sepals with canescent edges.        -   Receptacle.—Color: Green Group 143B with irregular patches            of Red Group 53A. Shape: Campanulate. Size: Medium, about 1            cm long×1.2 cm wide. Surface: Smooth.        -   Peduncle.—Length: Medium, averaging about 8 cm. Surface:            Glandular. Color: Yellow-Green Group 144B on shaded surface,            Greyed-Purple Group 184A on surface exposed to sun.            Strength: Normal to weak.-   Bloom:    -   -   Size.—Large. Average open diameter is about 9.7 cm.        -   Borne.—Several together in rounded clusters of seven to nine            blooms.        -   Form.—When first open: Cupped. Permanence: Retains its form.        -   Petalage.—Number of petals under normal conditions: 80-90.        -   Color.—The upper sides of the petals are Orange-Red Group            31B. The reverse sides of the petals are Orange-Red Group            35B. The bases of the petals are Yellow Group 9B on lower            surface and Yellow Group 9A on upper surface. The major            color on the upper sides is Orange-Red Group 31B.        -   Variegations.—None.        -   Discoloration.—The general tonality at the end of the first            day: Orange-Red Group 35B. At the end of the third day: Red            Group 37B upper side, Orange-Red Group 31C underside.        -   Fragrance.—Strong, fruity.-   Petals:    -   -   Texture.—Smooth.        -   Size.—Width: 3.7 cm. Length: 5.3 cm.        -   Surface.—Smooth.        -   Shape.—Obdeltoid/broad elliptical. Margin: Flat, gentle            undulation on inner petals, some slightly reflexing. Apex            Shape: Rounded (some outer petals emarginated). Base Shape:            Cuneate/Pointed. Form: Incurved, tips slightly recurved on            some.        -   Arrangement.—Inner petals: Informal. Outer ring of petals:            Imbricated.        -   Petaloids.—Number: 1. Anther: Color: Yellow-Orange Group            12C. Length: 1 mm. Filament: Color: Yellow-Orange Group 17A.            Length: 7 mm. Petal: Color: Orange-Red Group 34A. Shape:            Irregular. Length: 16 mm. Shape: Petal is joined to the            filament, and anther is fused to margin of petal.        -   Persistence.—Petals drop off cleanly before drying.        -   Lastingness.—On the plant: Fair (about 4 days). As a cut            flower: Short (about 4 days).-   Reproductive parts:    -   -   Stamens.—Number: 35. Length: 11 mm. Anthers: Length: 3 mm.            Color: Yellow-Orange Group 17A. Arrangement: Regular around            styles. Filaments: Color: Red Group 42C. Length: 8 mm.            Pollen: Color: Yellow-Orange Group 17A.        -   Pistils.—Number: 80. Length: 10 mm. Styles: Color:            Green-White Group 157A with Orange-Red Group 35A below            stigma. Length: 9 mm. Stigmas: Color: Yellow-Orange Group            14B. Length: 1 mm.        -   Hips.—None observed.

PLANT

-   -   -   Form.—Shrub.        -   Growth.—Medium vigor, upright, bushy.        -   Age at maturity.—Two years.        -   Mature plant.—Height: 1.25 m. Width: 0.9 m.        -   Rootstock.—‘Dr. Huey’ in the USA. Rosa dumetorum ‘Laxa’ for            the observed plants in the U.K.

-   Foliage: Number of leaflets on normal mid-stem leaves: 5-7    (including terminal leaflet).    -   -   Size.—Large. About 19.4 cm long×14.5 cm wide.        -   Quantity.—Normal. Average number leaves per flowering stem:            12.        -   Color.—New foliage: Upper side: Yellow-Green Group 146A and            Red Group 53A on margin. Lower side: Yellow-Green Group            146B. Old foliage: Upper side: Green Group 139A. Lower side:            Yellow-Green Group 146A.

-   Leaflets:    -   -   Size.—About 7.6 cm long×5.2 cm wide.        -   Shape.—Pointed oval.        -   Base shape.—Rounded.        -   Apex shape.—Acuminate.        -   Texture.—Leathery.        -   Edge.—Serrated.        -   Serrations.—Single, large.        -   Petiole.—Color: Yellow-Green Group 144B. Surface texture:            Smooth, a few glands present. Length: approximately 4 cm.            Width: approximately 2 mm.        -   Petiole rachis.—Color: Yellow-Green Group 144B. Underside:            Smooth (with a few glands).        -   Stipules.—Length: 1.9 cm. Margin: Glandular. Color:            Greyed-Red Group 178A.        -   Auricle shape.—Elongated awl.        -   Disease resistance.—Resistant to powdery and downy mildew,            blackspot and rust in normal growing conditions.        -   Pest resistance.—Not tested.        -   Vein color.—Yellow-Green Group 144B.        -   Venation pattern.—Reticulate.

-   Wood:    -   -   New wood.—Color: Greyed-Red Group 178A. Bark: Smooth.        -   Old wood.—Color: Yellow-Green Group 146B. Bark: Smooth.

-   Stems:    -   -   Mature stem.—Length: 45 cm. Diameter: 50 mm.        -   Internode distance.—4 cm. The above measurements are all            variable, depending on growing conditions in a season.

-   Prickles:    -   -   Quantity.—On main canes from base: Ordinary, 4 per 10 cm            stem length. On laterals from main canes: Ordinary, 5 per 10            cm per stem length.        -   Form.—Concave curved inward.        -   Length.—9 mm.        -   Color when young.—Greyed-Purple Group 185A with Yellow-Green            Group 146D at tip.        -   Color when mature.—Greyed-Orange Group 164A at base,            Greyed-Purple Group 184B at tip and along upper edge.

-   Small prickles:    -   -   Quantity.—On main stalks: None. On laterals: None.

-   Winter hardiness: Not tested.

1. A new and distinct variety of shrub rose plant substantially asherein shown and described, characterized particularly by its repeatflowering in large, full cupped blooms of an unusual burnt orange color;having a strong mixed fruity fragrance with banana and tea on a tall,bushy and upright shrub and its disease resistance.